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When we think of poverty, we tend to think about money in isolation: How much does she earn? Is that above or below the poverty line? But the financial part of the equation may not be the single most important factor. “The biggest mistake we make about scarcity,” Sendhil Mullainathan, an economist at Harvard who is a co-author of the book “Scarcity: Why Having Too Little Means So Much,” tells me, “is we view it as a physical phenomenon. It’s not.”

“There are three types of poverty,” he says. “There’s money poverty, there’s time poverty, and there’s bandwidth poverty.” The first is the type we typically associate with the word. The second occurs when the time debt of the sort I incurred starts to pile up.

And the third is the type of attention shortage that is fed by the other two: If I’m focused on the immediate deadline, I don’t have the cognitive resources to spend on mundane tasks or later deadlines. If I’m short on money, I can’t stop thinking about today’s expenses — never mind those in the future. In both cases, I end up making decisions that leave me worse off because I lack the ability to focus properly on anything other than what’s staring me in the face right now, at this exact moment.